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              Vue 1 to Vue2 那些事
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                  <time title="创建时间：2017-01-16 20:17:41" itemprop="dateCreated datePublished" datetime="2017-01-16T20:17:41+08:00">2017-01-16</time>
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                    <a href="/categories/Vue/" itemprop="url" rel="index"><span itemprop="name">Vue</span></a>
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                <span id="/blob/2017-01-16-vue-1-to-vue-2/" class="post-meta-item leancloud_visitors" data-flag-title="Vue 1 to Vue2 那些事" title="阅读次数">
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          <div class="post-body" itemprop="articleBody">
            <p><a target="_blank" rel="noopener" href="https://github.com/jwenjian/visitor-count-badge"><img src="" data-original="https://visitor-badge.glitch.me/badge?page_id=holidaypenguin.gitee.io/" alt="总访客数量"></a></p>
            <p><a target="_blank" rel="noopener" href="http://cn.vuejs.org/v2/api/">ue api 2</a></p>
            <p><a target="_blank" rel="noopener" href="http://router.vuejs.org/zh-cn/">vue-router api 2</a> </p>
            <p><a target="_blank" rel="noopener" href="http://cn.vuejs.org/v2/guide/migration.html">从 Vue 1.x 迁移</a></p>
            <p><a target="_blank" rel="noopener" href="http://cn.vuejs.org/v2/guide/migration-vue-router.html">从 Vue Router 0.7.x 迁移</a></p>
            <p><a target="_blank" rel="noopener" href="https://github.com/vuejs/vue/issues/2873">Vue 2.0 Changes</a></p>
            <p>使用vue提供的 <a target="_blank" rel="noopener" href="https://github.com/vuejs/vue-migration-helper">迁移工具</a> <a target="_blank" rel="noopener" href="https://github.com/vuejs/vue-migration-helper">vue-migration-helper</a> 可以检测出问题，</p>
            <figure class="highlight bash">
              <table>
                <tr>
                  <td class="gutter">
                    <pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br></pre>
                  </td>
                  <td class="code">
                    <pre><span class="line"><span class="comment"># install</span></span><br><span class="line">npm install --global vue-migration-helper</span><br><span class="line"> </span><br><span class="line"><span class="comment"># navigate to a Vue 1.x project directory</span></span><br><span class="line"><span class="built_in">cd</span> path/to/my-vue-project</span><br><span class="line"> </span><br><span class="line"><span class="comment"># scan all files in the current directory</span></span><br><span class="line">vue-migration-helper</span><br><span class="line"><span class="comment"># scan all files in specific sub-directories</span></span><br><span class="line">vue-migration-helper src folder-a folder-b</span><br><span class="line"><span class="comment"># scan a specific file or files</span></span><br><span class="line">vue-migration-helper src/app.vue</span><br></pre>
                  </td>
                </tr>
              </table>
            </figure>

            <p><strong>下面说一些主要的问题</strong></p>
            <hr>
            <h1 id="app-js"><a href="#app-js" class="headerlink" title="app.js"></a><strong>app.js</strong></h1>
            <ul>
              <li>
                <h5 id="创建vue实例使用new的方式"><a href="#创建vue实例使用new的方式" class="headerlink" title="创建vue实例使用new的方式"></a>创建vue实例使用new的方式</h5>
              </li>
              <li>
                <h5 id="定义的router在创建实例时加入"><a href="#定义的router在创建实例时加入" class="headerlink" title="定义的router在创建实例时加入"></a>定义的router在创建实例时加入</h5>
              </li>
              <li>
                <h5 id="ready方法的替换"><a href="#ready方法的替换" class="headerlink" title="ready方法的替换"></a>ready方法的替换</h5>
              </li>
            </ul>
            <p>代码如下：</p>
            <figure class="highlight js">
              <table>
                <tr>
                  <td class="gutter">
                    <pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br></pre>
                  </td>
                  <td class="code">
                    <pre><span class="line"><span class="keyword">const</span> app = <span class="keyword">new</span> Vue(&#123;</span><br><span class="line">    <span class="function"><span class="title">data</span>(<span class="params"></span>)</span> &#123;</span><br><span class="line">        <span class="keyword">return</span> &#123;</span><br><span class="line">            isHome: <span class="literal">false</span></span><br><span class="line">        &#125;;</span><br><span class="line">    &#125;,</span><br><span class="line">    router: router,</span><br><span class="line">    <span class="function"><span class="title">mounted</span>(<span class="params"></span>)</span> &#123;</span><br><span class="line">        <span class="built_in">this</span>.$nextTick(<span class="function"><span class="keyword">function</span>(<span class="params"></span>) </span>&#123;</span><br><span class="line">        &#125;)</span><br><span class="line">    &#125;</span><br><span class="line">&#125;).$mount(<span class="string">&#x27;#app&#x27;</span>)</span><br></pre>
                  </td>
                </tr>
              </table>
            </figure>

            <h1 id="vue"><a href="#vue" class="headerlink" title="**/*.vue"></a>*<strong>*/*.vue</strong></h1>
            <ul>
              <li>
                <h5 id="for循环没有-index"><a href="#for循环没有-index" class="headerlink" title="for循环没有$index"></a>for循环没有$index</h5>
              </li>
              <li>
                <h5 id="当循环router-link时要在外层循环template，否则会阻碍属性-to的使用"><a href="#当循环router-link时要在外层循环template，否则会阻碍属性-to的使用" class="headerlink" title="当循环router-link时要在外层循环template，否则会阻碍属性:to的使用"></a>当循环router-link时要在外层循环template，否则会阻碍属性:to的使用</h5>
              </li>
            </ul>
            <p>代码如下</p>
            <figure class="highlight html">
              <table>
                <tr>
                  <td class="gutter">
                    <pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br></pre>
                  </td>
                  <td class="code">
                    <pre><span class="line"><span class="tag">&lt;<span class="name">div</span> <span class="attr">class</span>=<span class="string">&quot;list&quot;</span> <span class="attr">v-for</span>=<span class="string">&quot;(mlist, index) in media_lists&quot;</span> <span class="attr">:class</span>=<span class="string">&quot;&#123;&#x27;active&#x27;:index==0&#125;&quot;</span>&gt;</span></span><br><span class="line">    <span class="comment">&lt;!-- --&gt;</span></span><br><span class="line"><span class="tag">&lt;/<span class="name">div</span>&gt;</span></span><br></pre>
                  </td>
                </tr>
              </table>
            </figure>

            <ul>
              <li>
                <h5 id="组件template下只能有一个节点"><a href="#组件template下只能有一个节点" class="headerlink" title="组件template下只能有一个节点"></a>组件template下只能有一个节点</h5>
              </li>
              <li>
                <h5 id="继承的变量不能在data里面重复写"><a href="#继承的变量不能在data里面重复写" class="headerlink" title="继承的变量不能在data里面重复写"></a>继承的变量不能在data里面重复写</h5>
              </li>
              <li>
                <h5 id="事件传递问题"><a href="#事件传递问题" class="headerlink" title="事件传递问题"></a>事件传递问题</h5>
              </li>
            </ul>
            <p>经过多少次的实验，最后的解决方案是vuex来进行状态管理</p>
            <figure class="highlight js">
              <table>
                <tr>
                  <td class="gutter">
                    <pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br><span class="line">46</span><br><span class="line">47</span><br><span class="line">48</span><br><span class="line">49</span><br><span class="line">50</span><br><span class="line">51</span><br><span class="line">52</span><br><span class="line">53</span><br><span class="line">54</span><br><span class="line">55</span><br><span class="line">56</span><br><span class="line">57</span><br><span class="line">58</span><br><span class="line">59</span><br><span class="line">60</span><br><span class="line">61</span><br><span class="line">62</span><br><span class="line">63</span><br></pre>
                  </td>
                  <td class="code">
                    <pre><span class="line"><span class="comment">// store.js</span></span><br><span class="line"><span class="keyword">export</span> <span class="keyword">default</span> <span class="keyword">new</span> Vuex.Store(&#123;</span><br><span class="line">    state: &#123;</span><br><span class="line">        loading: <span class="literal">false</span></span><br><span class="line">    &#125;,</span><br><span class="line">    mutations: &#123;</span><br><span class="line">        <span class="function"><span class="title">load_show</span>(<span class="params">state</span>)</span> &#123;</span><br><span class="line">            state.loading = <span class="literal">true</span>;</span><br><span class="line">        &#125;,</span><br><span class="line">        <span class="function"><span class="title">load_hide</span>(<span class="params">state</span>)</span> &#123;</span><br><span class="line">            state.loading = <span class="literal">false</span>;</span><br><span class="line">        &#125;</span><br><span class="line">    &#125;</span><br><span class="line">&#125;)</span><br><span class="line">  </span><br><span class="line"><span class="comment">// app.js</span></span><br><span class="line"><span class="keyword">import</span> store <span class="keyword">from</span> <span class="string">&#x27;./store&#x27;</span>;</span><br><span class="line">    <span class="comment">// ...</span></span><br><span class="line"><span class="keyword">const</span> app = <span class="keyword">new</span> Vue(&#123;</span><br><span class="line">    <span class="function"><span class="title">data</span>(<span class="params"></span>)</span> &#123;</span><br><span class="line">        <span class="keyword">return</span> &#123;</span><br><span class="line">            isHome: <span class="literal">false</span></span><br><span class="line">        &#125;;</span><br><span class="line">    &#125;,</span><br><span class="line">    store,</span><br><span class="line">    router: router,</span><br><span class="line">    <span class="function"><span class="title">mounted</span>(<span class="params"></span>)</span> &#123;</span><br><span class="line">        <span class="built_in">this</span>.$nextTick(<span class="function"><span class="keyword">function</span>(<span class="params"></span>) </span>&#123;</span><br><span class="line">        &#125;)</span><br><span class="line">    &#125;</span><br><span class="line">&#125;).$mount(<span class="string">&#x27;#app&#x27;</span>)</span><br><span class="line"> </span><br><span class="line"> </span><br><span class="line"><span class="comment">// ryLoading.vue</span></span><br><span class="line">&lt;template&gt;</span><br><span class="line">    &lt;div <span class="class"><span class="keyword">class</span></span>=<span class="string">&quot;w-loading&quot;</span> v-<span class="keyword">if</span>=<span class="string">&quot;loading&quot;</span>&gt;</span><br><span class="line">        &lt;div <span class="class"><span class="keyword">class</span></span>=<span class="string">&quot;icon&quot;</span>&gt;&lt;/div&gt;</span><br><span class="line">    &lt;/div&gt;</span><br><span class="line">&lt;/template&gt;</span><br><span class="line">&lt;script lang=<span class="string">&quot;babel&quot;</span>&gt;</span><br><span class="line"><span class="keyword">export</span> <span class="keyword">default</span>&#123;</span><br><span class="line">    <span class="function"><span class="title">data</span>(<span class="params"></span>)</span> &#123;</span><br><span class="line">        <span class="keyword">return</span> &#123;</span><br><span class="line">        &#125;</span><br><span class="line">    &#125;,</span><br><span class="line">    computed: &#123;</span><br><span class="line">        loading () &#123;</span><br><span class="line">            <span class="keyword">return</span> <span class="built_in">this</span>.$store.state.loading</span><br><span class="line">        &#125;</span><br><span class="line">    &#125;,</span><br><span class="line">    watch: &#123;</span><br><span class="line">         </span><br><span class="line">    &#125;,</span><br><span class="line">    <span class="function"><span class="title">mounted</span>(<span class="params"></span>)</span> &#123;</span><br><span class="line">        <span class="built_in">this</span>.$nextTick(<span class="function"><span class="keyword">function</span>(<span class="params"></span>) </span>&#123;</span><br><span class="line">        &#125;)</span><br><span class="line">    &#125;</span><br><span class="line">&#125;</span><br><span class="line">&lt;/script&gt;</span><br><span class="line">  </span><br><span class="line"><span class="comment">//list.vue</span></span><br><span class="line"><span class="built_in">this</span>.$store.commit(<span class="string">&quot;load_show&quot;</span>);</span><br><span class="line"><span class="built_in">this</span>.$store.commit(<span class="string">&quot;load_hide&quot;</span>);</span><br></pre>
                  </td>
                </tr>
              </table>
            </figure>

            <ul>
              <li>
                <h5 id="select-for循环问题，代码如下"><a href="#select-for循环问题，代码如下" class="headerlink" title="select for循环问题，代码如下"></a>select for循环问题，代码如下</h5>
              </li>
            </ul>
            <figure class="highlight html">
              <table>
                <tr>
                  <td class="gutter">
                    <pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br></pre>
                  </td>
                  <td class="code">
                    <pre><span class="line"><span class="tag">&lt;<span class="name">select</span> <span class="attr">v-model</span>=<span class="string">&quot;content&quot;</span> <span class="attr">class</span>=<span class="string">&quot;select&quot;</span>&gt;</span></span><br><span class="line">    <span class="tag">&lt;<span class="name">template</span> <span class="attr">v-for</span>=<span class="string">&quot;(item, index) in contentSel&quot;</span>&gt;</span></span><br><span class="line">        <span class="tag">&lt;<span class="name">option</span> <span class="attr">v-bind:value</span>=<span class="string">&quot;item&quot;</span>&gt;</span>&#123;&#123;item&#125;&#125;<span class="tag">&lt;/<span class="name">option</span>&gt;</span></span><br><span class="line">    <span class="tag">&lt;/<span class="name">template</span>&gt;</span></span><br><span class="line"><span class="tag">&lt;/<span class="name">select</span>&gt;</span></span><br></pre>
                  </td>
                </tr>
              </table>
            </figure>



            <p><strong>接下来是最重要的vue-router2，感觉灰常难搞</strong></p>
            <hr>
            <h1 id="router-js"><a href="#router-js" class="headerlink" title="router.js"></a>router.js</h1>
            <ul>
              <li>
                <h5 id="new-VueRouter创建参数的变化"><a href="#new-VueRouter创建参数的变化" class="headerlink" title="new VueRouter创建参数的变化"></a>new VueRouter创建参数的变化</h5>
              </li>
              <li>
                <h5 id="子路由使用children，且是一个数组，原来是一个对象"><a href="#子路由使用children，且是一个数组，原来是一个对象" class="headerlink" title="子路由使用children，且是一个数组，原来是一个对象"></a>子路由使用children，且是一个数组，原来是一个对象</h5>
              </li>
              <li>
                <h5 id="router-view-状态切换使用transition标签，切换自定义样式添加-active"><a href="#router-view-状态切换使用transition标签，切换自定义样式添加-active" class="headerlink" title="router-view 状态切换使用transition标签，切换自定义样式添加-active"></a>router-view 状态切换使用transition标签，切换自定义样式添加-active</h5>
              </li>
              <li>
                <h5 id="路由重定向方式的变化-见vue-router-api-2"><a href="#路由重定向方式的变化-见vue-router-api-2" class="headerlink" title="路由重定向方式的变化 见vue-router api 2"></a>路由重定向方式的变化 见<a target="_blank" rel="noopener" href="http://router.vuejs.org/zh-cn/">vue-router api 2</a></h5>
              </li>
              <li>
                <h5 id="首页path为空时，导航栏显示激活状态异常，非home时覆盖激活的样式。"><a href="#首页path为空时，导航栏显示激活状态异常，非home时覆盖激活的样式。" class="headerlink" title="首页path为空时，导航栏显示激活状态异常，非home时覆盖激活的样式。"></a>首页path为空时，导航栏显示激活状态异常，非home时覆盖激活的样式。</h5>
              </li>
            </ul>
            <p>代码如下</p>
            <p><em>app.js中内容</em></p>
            <figure class="highlight js">
              <table>
                <tr>
                  <td class="gutter">
                    <pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br></pre>
                  </td>
                  <td class="code">
                    <pre><span class="line"><span class="keyword">import</span> routerMap <span class="keyword">from</span> <span class="string">&#x27;./router&#x27;</span></span><br><span class="line"><span class="keyword">var</span> router = <span class="keyword">new</span> VueRouter(&#123;</span><br><span class="line">    mode: <span class="string">&#x27;history&#x27;</span>,</span><br><span class="line">    routes: routerMap()</span><br><span class="line">&#125;);</span><br></pre>
                  </td>
                </tr>
              </table>
            </figure>



            <p><em>router.afterEach 参数变化（参数title在meta中）</em></p>
            <figure class="highlight js">
              <table>
                <tr>
                  <td class="gutter">
                    <pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br></pre>
                  </td>
                  <td class="code">
                    <pre><span class="line">router.afterEach(<span class="function">(<span class="params">to, <span class="keyword">from</span></span>) =&gt;</span> &#123;</span><br><span class="line">     </span><br><span class="line">    router.app.isHome = to.name.indexOf(<span class="string">&#x27;home&#x27;</span>) == <span class="number">0</span> ? <span class="literal">true</span> : <span class="literal">false</span>;</span><br><span class="line">    <span class="keyword">var</span> fromHome = (<span class="keyword">from</span> &amp;&amp; <span class="keyword">from</span>.name &amp;&amp; <span class="keyword">from</span>.name.indexOf(<span class="string">&#x27;home&#x27;</span>) == <span class="number">0</span>) ? <span class="literal">true</span> : <span class="literal">false</span>;</span><br><span class="line">    <span class="keyword">if</span> (to.meta.title) &#123;</span><br><span class="line">        <span class="built_in">document</span>.title = to.meta.title;</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="keyword">if</span>(!router.app.isHome)&#123;</span><br><span class="line">        <span class="built_in">window</span>.scrollTo(<span class="number">0</span>, <span class="number">0</span>);</span><br><span class="line">    &#125;<span class="keyword">else</span> <span class="keyword">if</span>(router.app.isHome &amp;&amp; fromHome)&#123;</span><br><span class="line">        <span class="keyword">var</span> el = to.query &amp;&amp; to.query.el;</span><br><span class="line">        <span class="keyword">var</span> posY =  el ? $(el).offset().top : <span class="number">0</span>;</span><br><span class="line">        <span class="built_in">window</span>.scrollTo(<span class="number">0</span>, posY);</span><br><span class="line">    &#125;</span><br><span class="line">&#125;);</span><br></pre>
                  </td>
                </tr>
              </table>
            </figure>



            <p><em>router.js（</em>自定义参数title放在meta中、path除了根节点，其他都不加 “/”<em>）</em></p>
            <figure class="highlight js">
              <table>
                <tr>
                  <td class="gutter">
                    <pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br><span class="line">46</span><br><span class="line">47</span><br><span class="line">48</span><br><span class="line">49</span><br><span class="line">50</span><br><span class="line">51</span><br><span class="line">52</span><br><span class="line">53</span><br><span class="line">54</span><br><span class="line">55</span><br><span class="line">56</span><br><span class="line">57</span><br><span class="line">58</span><br></pre>
                  </td>
                  <td class="code">
                    <pre><span class="line"><span class="keyword">export</span> <span class="keyword">default</span> <span class="function"><span class="keyword">function</span>(<span class="params"></span>)</span>&#123;</span><br><span class="line">    <span class="keyword">var</span> routerMap = [&#123;</span><br><span class="line">        path: prefix(),</span><br><span class="line">        component: <span class="built_in">require</span>(<span class="string">&#x27;business/business&#x27;</span>),</span><br><span class="line">        name: MODULE_NAME,</span><br><span class="line">        children: [</span><br><span class="line">            &#123;</span><br><span class="line">                path: <span class="string">&#x27;&#x27;</span>,</span><br><span class="line">                name: <span class="string">&#x27;home&#x27;</span>,</span><br><span class="line">                alias: <span class="string">&#x27;/&#x27;</span>,</span><br><span class="line">                meta: &#123;<span class="attr">title</span>: <span class="string">&#x27;首页&#x27;</span>&#125;,</span><br><span class="line">                component: <span class="function"><span class="keyword">function</span>(<span class="params">resolve</span>)</span>&#123;</span><br><span class="line">                    <span class="built_in">require</span>.ensure([<span class="string">&#x27;business/home/home&#x27;</span>], <span class="function"><span class="keyword">function</span>(<span class="params"></span>)</span>&#123;</span><br><span class="line">                        <span class="built_in">require</span>([<span class="string">&#x27;business/home/home&#x27;</span>], resolve);</span><br><span class="line">                    &#125;, <span class="string">&#x27;home&#x27;</span>)</span><br><span class="line">                     </span><br><span class="line">                &#125;</span><br><span class="line">            &#125;,</span><br><span class="line">            &#123;</span><br><span class="line">                path: <span class="string">&#x27;products&#x27;</span>,</span><br><span class="line">                name: <span class="string">&#x27;products&#x27;</span>,</span><br><span class="line">                component: Vue.extend(&#123;</span><br><span class="line">                    template: <span class="string">&#x27;&lt;div class=&quot;p-products&quot;&gt;&lt;transition name=&quot;fade&quot; mode=&quot;out-in&quot;&gt;&lt;router-view&gt;&lt;/router-view&gt;&lt;/transition&gt;&lt;/div&gt;&#x27;</span></span><br><span class="line">                &#125;),</span><br><span class="line">                children: [</span><br><span class="line">                    &#123;</span><br><span class="line">                        path: <span class="string">&#x27;pos&#x27;</span>,</span><br><span class="line">                        meta: &#123;<span class="attr">title</span>:<span class="string">&#x27;容易POS&#x27;</span>&#125;,</span><br><span class="line">                        name: <span class="string">&#x27;products.pos&#x27;</span>,</span><br><span class="line">                        component: <span class="function"><span class="keyword">function</span>(<span class="params">resolve</span>)</span>&#123;</span><br><span class="line">                            <span class="built_in">require</span>.ensure([<span class="string">&#x27;business/products/pos/pos&#x27;</span>], <span class="function"><span class="keyword">function</span>(<span class="params"></span>)</span>&#123;</span><br><span class="line">                                <span class="built_in">require</span>([<span class="string">&#x27;business/products/pos/pos&#x27;</span>], resolve);</span><br><span class="line">                            &#125;, <span class="string">&#x27;products.pos&#x27;</span>)</span><br><span class="line">                        &#125;</span><br><span class="line">                    &#125;</span><br><span class="line">                ]</span><br><span class="line">            &#125;</span><br><span class="line">        ]</span><br><span class="line">    &#125;];</span><br><span class="line"> </span><br><span class="line">    <span class="function"><span class="keyword">function</span> <span class="title">prefix</span>(<span class="params">path=<span class="string">&#x27;&#x27;</span></span>)</span>&#123;</span><br><span class="line">        <span class="keyword">if</span>(path == <span class="string">&#x27;*&#x27;</span>)&#123;</span><br><span class="line">            <span class="keyword">return</span> path;</span><br><span class="line">        &#125;</span><br><span class="line">        <span class="keyword">if</span>(ENV == <span class="string">&#x27;online&#x27;</span> || ENV == <span class="string">&#x27;pre_online&#x27;</span>)&#123;</span><br><span class="line">            <span class="keyword">if</span>(path)&#123;</span><br><span class="line">                <span class="keyword">return</span> path;</span><br><span class="line">            &#125;<span class="keyword">else</span>&#123;</span><br><span class="line">                <span class="keyword">return</span> <span class="string">&#x27;/&#x27;</span>;</span><br><span class="line">            &#125;</span><br><span class="line">        &#125;<span class="keyword">else</span>&#123;</span><br><span class="line">            <span class="keyword">return</span> <span class="string">&#x27;/&#x27;</span> + MODULE_NAME + path;</span><br><span class="line">        &#125;</span><br><span class="line">         </span><br><span class="line">    &#125;</span><br><span class="line">     </span><br><span class="line">    <span class="keyword">return</span> routerMap;</span><br><span class="line">&#125;</span><br></pre>
                  </td>
                </tr>
              </table>
            </figure>

            <p>css</p>
            <figure class="highlight css">
              <table>
                <tr>
                  <td class="gutter">
                    <pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br></pre>
                  </td>
                  <td class="code">
                    <pre><span class="line"><span class="selector-class">.fade-leave-active</span> &#123;</span><br><span class="line">    <span class="attribute">opacity</span>: <span class="number">0</span>;</span><br><span class="line">&#125;</span><br></pre>
                  </td>
                </tr>
              </table>
            </figure>

            <h1 id="v-link-gt-router-link-标签"><a href="#v-link-gt-router-link-标签" class="headerlink" title="v-link =&gt; router-link 标签"></a>v-link =&gt; router-link 标签</h1>
            <p>样式变化router-link-active、标签变化</p>
            <p>需要注意to=””和:to=”{}”的区别</p>
            <p><a target="_blank" rel="noopener" href="http://router.vuejs.org/zh-cn/api/router-link.html">router-link api</a></p>

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            if (results.length > 0) {
              const counter = results[0];
              leancloudSelector(url).innerText = counter.time + 1;
              Counter('put', '/classes/Counter/' + counter.objectId, {
                  time: {
                    '__op': 'Increment',
                    'amount': 1
                  }
                })
                .catch(error => {
                  console.error('Failed to save visitor count', error);
                });
            } else {
              Counter('post', '/classes/Counter', {
                  title,
                  url,
                  time: 1
                })
                .then(response => response.json())
                .then(() => {
                  leancloudSelector(url).innerText = 1;
                })
                .catch(error => {
                  console.error('Failed to create', error);
                });
            }
          })
          .catch(error => {
            console.error('LeanCloud Counter Error', error);
          });
      }

      function showTime(Counter) {
        const visitors = document.querySelectorAll('.leancloud_visitors');
        const entries = [...visitors].map(element => {
          return decodeURI(element.id);
        });

        Counter('get', '/classes/Counter?where=' + encodeURIComponent(JSON.stringify({
            url: {
              '$in': entries
            }
          })))
          .then(response => response.json())
          .then(({
            results
          }) => {
            for (let url of entries) {
              const target = results.find(item => item.url === url);
              leancloudSelector(url).innerText = target ? target.time : 0;
            }
          })
          .catch(error => {
            console.error('LeanCloud Counter Error', error);
          });
      }

      const {
        app_id,
        app_key,
        server_url
      } = {
        "enable": true,
        "app_id": "povuqNsSqFodlakVIwtEX5kb-gzGzoHsz",
        "app_key": "zXD40RDtDB3DMtpC89k0AK7g",
        "server_url": null,
        "security": false
      };

      function fetchData(api_server) {
        const Counter = (method, url, data) => {
          return fetch(`${api_server}/1.1${url}`, {
            method,
            headers: {
              'X-LC-Id': app_id,
              'X-LC-Key': app_key,
              'Content-Type': 'application/json',
            },
            body: JSON.stringify(data)
          });
        };
        if (CONFIG.page.isPost) {
          if (CONFIG.hostname !== location.hostname) return;
          addCount(Counter);
        } else if (document.querySelectorAll('.post-title-link').length >= 1) {
          showTime(Counter);
        }
      }

      const api_server = app_id.slice(-9) === '-MdYXbMMI' ? `https://${app_id.slice(0, 8).toLowerCase()}.api.lncldglobal.com` : server_url;

      if (api_server) {
        fetchData(api_server);
      } else {
        fetch('https://app-router.leancloud.cn/2/route?appId=' + app_id)
          .then(response => response.json())
          .then(({
            api_server
          }) => {
            fetchData('https://' + api_server);
          });
      }
    })();
  </script>



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